Water-heater.



G. T. NEWELL, JR. WATER HEATER.

APPLICATION FILED AUG. 9, 191a 1,103,6 14. Patented July 14, 1914.

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GEORGE T. nnwnnn, an, or rassaro, new .innsny, assronon TO 'VESTAnanosec- "rnnrne COMPANY, or PASFSAIC, new JERSEY, A oonrona'rron on NEWJERsEY.

WATER-HEATER.

Specification of Letters Patent.

Patented July 14, 1914 Application filed August 9, 1913. Serial No.783,885.

To all whom it may concern Be it known that I, Gnonon T. Nnw- ELL, Jr.,a citizen of the United States of America, residing at Passaic, Passaiccounty, in the State of New Jersey, have invented certain new and usefulImprovements in \Vater-I-leaters, of which the following is a full,clear, and exact description.

This invention relates to portable waterheaters more particularly to theheatingcoils thereof, and has for its object, among others, to providefor use in such waterheaters an inexpensive heating-coil of specialconstruction and arrangement whereby space is economized and a maximumamount of heating surface provided. and in which the coils orconvolutions are so disposed that air currents or flues are practicallyobviated.

The particular features of improvement and some of the advantagesflowing therefrom will be hereinafter described more in detail andfinally set forth in the appended claim, reference being had to theaccompanying drawing, forming part hereof, wherein Figure 1 is a sideelevation, partly in section, of a water heater embodying myimprovements, and Fig. 2 is a sectional plan view thereof, the sectionbeing taken on line 2-2 in Fig. 1. i

In the accompanying drawing, the numeral 1 indicates the casing of awater heater, within which is contained a heating coil preferablycomposed of a. single tubing of copper, looped orconvoluted, as shown,one terminal of the coil constituting the inlet 3 and the other terminalthe outlet 4-. It will be seen that the coil is bent into a series ofcontiguous juxtaposed loops or convolutions, 5, arranged insubstantially horizontally disposed superposed layers 3 to 17,respectively. The inletend of the coil, it will be noted, oasses fromthe upper portion of the casing in a horizontal plane toward the theleft and then bends downwardly and through the end loops to provide avertical portion 18, and near its bottom it again is bent as at 19 torun in a horizontal plane, and is then looped or convoluted at 20, andagain looped as at 21, forming two additional loops; it is then loopedagain as at 22, to form two more additional loops, and then looped as at23 to form two more loops, (the opposite side of this lowest layer ofloops 21 22 and 23 appearing in the form of contiguous duplex-loops); itis then looped as at v 24 25, 26, 27 and 28, all the loops beingarranged in substantially contiguous superposed relationship, and so onuntil a suiiicient number of layers of coils or loops is provided. Itwill be seen (Fig. 1) that the convolutions or loops of alternate layersare oppositely directed relatively to each other, that is to say (forinstance) the loops formed by the coils, 21, 22 and 23 are directedoppositely to the direction of the loops 2%, 25, 26, 27 and 28. ing andat each side thereof, are supporting standards 29 and 30 provided withspaced lugs or projections 29 and 230 upon which the layers of loops mayrest and whereby also the same are kept in spaced relationship. Thecoils are heated by a suitable burner 31.

Although in the drawing I have shown the layers of loops as spaced apartto a substantial degree, I have shown the same thus spaced for thepurpose of more clearly illustrating the arrangement of the coils orloops, as in practice the layers of loops are more closely nested andthe spacing lugs more closed disposed. It will, therefore, be understoodthat the particular degree of spacing or nesting of the layers can bearranged to suit requirements.

It will be noted that the inlet starts at the upper portion of theheater and the water runs downwardly so that incoming water will befirst heated at the lower portion of the tubing, and thus the water isheated from the bottom upwardly to the top or outlet. 1 have found inpractice that by this arrangement undue condensation is avoided. It willalso be noted that by my arrangement of the layers of coils orconvolutions a comparatively large heating surface is provided, assubstantially all the parts are exposed to the heat. Furthermore, itwill be seen (Fig. 2) that the respective loops or convolutions of onelayer are staggered relatively to the loops of the adjacent superposedlayers. This arrangement leaves no flues and air currents areconsequently broken up. Furthermore, great economy of space is provided.In heating coils provided with continuous vertically arranged spirallikeconvolutions, air currents or drafts are more apt to take place than inthe construction which I have shown and described.

Within the cas- Having now described my invention, what I claim anddesire to secure by Letters Patcut is: A water heater comprising acasing, a burner arranged therein, and a water pipe leading into thecasing near the upper end, projected laterally, then downwardl andlaterally adjacent the burner, and projected upwardly therefrom in aseries of superimposed layers extending across the casing, each layerinclining upwardly from the in- "let ,end'thereof to the outlet endthereof,

each layer including a series of successive Copies of this patent may beobtained for five'cents each, by addressing the v Commissioner ofPatents,

coils, the lowermost section ofeach coil being on an upward incllnatlonwith respect to the uppermost section" of the adjacent coil toward theinlet of the particular layer, whereby the flow of water throughout thelayers is continuously against the action of gravity. 7 -V A v Signed atNew York city, N. Y., this 8th ay of August, 1913. v Y

GEORGE T. NEVVELL, JR. Witnesses:

. EDWARD A. JARVIS,

RUTH Mnrnns.

. Washington, D. G. v

